LCOV - code coverage report
Current view: top level - foo/src/jamidht/swarm - swarm_manager.h (source / functions) Hit Total Coverage
Test: jami-coverage-filtered.info Lines: 7 7 100.0 %
Date: 2026-04-01 09:29:43 Functions: 7 7 100.0 %

          Line data    Source code
       1             : /*
       2             :  *  Copyright (C) 2004-2026 Savoir-faire Linux Inc.
       3             :  *
       4             :  *  This program is free software: you can redistribute it and/or modify
       5             :  *  it under the terms of the GNU General Public License as published by
       6             :  *  the Free Software Foundation, either version 3 of the License, or
       7             :  *  (at your option) any later version.
       8             :  *
       9             :  *  This program is distributed in the hope that it will be useful,
      10             :  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      12             :  *  GNU General Public License for more details.
      13             :  *
      14             :  *  You should have received a copy of the GNU General Public License
      15             :  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
      16             :  */
      17             : #pragma once
      18             : 
      19             : #include "routing_table.h"
      20             : #include "swarm_protocol.h"
      21             : 
      22             : #include <memory>
      23             : 
      24             : namespace jami {
      25             : 
      26             : using namespace swarm_protocol;
      27             : 
      28             : class SwarmManager : public std::enable_shared_from_this<SwarmManager>
      29             : {
      30             :     using ChannelCb = std::function<bool(const std::shared_ptr<dhtnet::ChannelSocketInterface>&)>;
      31             :     using NeedSocketCb = std::function<void(const std::string&, ChannelCb&&)>;
      32             :     using ToConnectCb = std::function<bool(const NodeId&)>;
      33             :     using OnConnectionChanged = std::function<void(bool ok)>;
      34             : 
      35             : public:
      36             :     explicit SwarmManager(const NodeId&, const std::mt19937_64& rand, ToConnectCb&& toConnectCb);
      37             :     ~SwarmManager();
      38             : 
      39             :     NeedSocketCb needSocketCb_;
      40             : 
      41        4692 :     std::weak_ptr<SwarmManager> weak() { return weak_from_this(); }
      42             : 
      43             :     /**
      44             :      * Get swarm manager id
      45             :      * @return NodeId
      46             :      */
      47        1947 :     const NodeId& getId() const { return id_; }
      48             : 
      49             :     /**
      50             :      * Set list of nodes to the routing table known_nodes
      51             :      * @param known_nodes
      52             :      * @return if some are new
      53             :      */
      54             :     bool setKnownNodes(const std::vector<NodeId>& known_nodes);
      55             : 
      56             :     /**
      57             :      * Set list of nodes to the routing table mobile_nodes
      58             :      * @param mobile_nodes
      59             :      */
      60             :     void setMobileNodes(const std::vector<NodeId>& mobile_nodes);
      61             : 
      62             :     /**
      63             :      * Add channel to routing table
      64             :      * @param channel
      65             :      */
      66             :     void addChannel(const std::shared_ptr<dhtnet::ChannelSocketInterface>& channel);
      67             : 
      68             :     /**
      69             :      * Remove channel from routing table
      70             :      * @param channel
      71             :      */
      72             :     void removeNode(const NodeId& nodeId);
      73             : 
      74             :     /**
      75             :      * Change mobility of specific node
      76             :      * @param nodeId
      77             :      * @param isMobile
      78             :      */
      79             :     void changeMobility(const NodeId& nodeId, bool isMobile);
      80             : 
      81             :     /**
      82             :      * Check if swarm manager is connected
      83             :      * @return true if the swarm has at least one connected node, false if not
      84             :      */
      85             :     bool isConnected() const;
      86             : 
      87             :     /**
      88             :      * get all nodes from the different tables in bucket
      89             :      */
      90             :     std::vector<NodeId> getAllNodes() const;
      91             : 
      92             :     std::vector<NodeId> getConnectedNodes() const;
      93             : 
      94             :     /**
      95             :      * Delete nodes from the different tables in bucket
      96             :      */
      97             :     void deleteNode(const std::vector<NodeId>& nodes);
      98             : 
      99             :     // For tests
     100             : 
     101             :     /**
     102             :      * Get routing table
     103             :      * @return RoutingTable
     104             :      */
     105         518 :     RoutingTable& getRoutingTable() { return routing_table; };
     106             : 
     107             :     /**
     108             :      * Get buckets of routing table
     109             :      * @return buckets list
     110             :      */
     111             :     std::list<Bucket>& getBuckets() { return routing_table.getBuckets(); };
     112             : 
     113             :     /**
     114             :      * Shutdown swarm manager
     115             :      */
     116             :     void shutdown();
     117             : 
     118             :     /**
     119             :      * Restart the swarm manager.
     120             :      *
     121             :      * This function must be called in situations where we want
     122             :      * to use a swarm manager that was previously shut down.
     123             :      */
     124             :     void restart();
     125             : 
     126             :     /**
     127             :      * Display swarm manager info
     128             :      */
     129             :     void display()
     130             :     {
     131             :         JAMI_DEBUG("SwarmManager {:s} has {:d} nodes in table [P = {}]",
     132             :                    getId().to_c_str(),
     133             :                    routing_table.getNodeCount(),
     134             :                    isMobile_);
     135             :         // print nodes of routingtable
     136             :         for (auto& bucket : routing_table.getBuckets()) {
     137             :             for (auto& node : bucket.getNodes()) {
     138             :                 JAMI_DEBUG("Node {:s}", node.first.toString());
     139             :             }
     140             :         }
     141             :     }
     142             : 
     143             :     /*
     144             :      * Callback for connection changed
     145             :      * @param cb
     146             :      */
     147         513 :     void onConnectionChanged(OnConnectionChanged cb) { onConnectionChanged_ = std::move(cb); }
     148             : 
     149             :     /**
     150             :      * Set mobility of swarm manager
     151             :      * @param isMobile
     152             :      */
     153         163 :     void setMobility(bool isMobile) { isMobile_ = isMobile; }
     154             : 
     155             :     /**
     156             :      * Get mobility of swarm manager
     157             :      * @return true if mobile, false if not
     158             :      */
     159           9 :     bool isMobile() const { return isMobile_; }
     160             : 
     161             :     /**
     162             :      * Maintain/Update buckets
     163             :      * @param toConnect         Nodes to connect
     164             :      */
     165             :     void maintainBuckets(const std::set<NodeId>& toConnect = {});
     166             : 
     167             :     /**
     168             :      * Check if we're connected with a specific device
     169             :      * @param deviceId
     170             :      * @return true if connected, false if not
     171             :      */
     172             :     bool isConnectedWith(const NodeId& deviceId);
     173             : 
     174             :     /**
     175             :      * Check if swarm manager is shutdown
     176             :      * @return true if shutdown, false if not
     177             :      */
     178        1041 :     bool isShutdown() { return isShutdown_; };
     179             : 
     180             : private:
     181             :     /**
     182             :      * Add node to the known_nodes list
     183             :      * @param nodeId
     184             :      * @return if node inserted
     185             :      */
     186             :     bool addKnownNode(const NodeId& nodeId);
     187             : 
     188             :     /**
     189             :      * Add node to the mobile_Nodes list
     190             :      * @param nodeId
     191             :      */
     192             :     void addMobileNodes(const NodeId& nodeId);
     193             : 
     194             :     /**
     195             :      * Send nodes request to fill known_nodes list
     196             :      * @param socket
     197             :      * @param nodeId
     198             :      * @param q
     199             :      * @param numberNodes
     200             :      */
     201             :     void sendRequest(const std::shared_ptr<dhtnet::ChannelSocketInterface>& socket,
     202             :                      const NodeId& nodeId,
     203             :                      Query q,
     204             :                      int numberNodes = Bucket::BUCKET_MAX_SIZE);
     205             : 
     206             :     /**
     207             :      * Send answer to request
     208             :      * @param socket
     209             :      * @param msg
     210             :      */
     211             :     void sendAnswer(const std::shared_ptr<dhtnet::ChannelSocketInterface>& socket, const Message& msg_);
     212             : 
     213             :     /**
     214             :      * Interpret received message
     215             :      * @param socket
     216             :      */
     217             :     void receiveMessage(const std::shared_ptr<dhtnet::ChannelSocketInterface>& socket);
     218             : 
     219             :     /**
     220             :      * Reset node's timer expiry
     221             :      * @param ec
     222             :      * @param socket
     223             :      * @param node
     224             :      */
     225             :     void resetNodeExpiry(const asio::error_code& ec,
     226             :                          const std::shared_ptr<dhtnet::ChannelSocketInterface>& socket,
     227             :                          NodeId node = {});
     228             : 
     229             :     /**
     230             :      * Try to establich connexion with specific node
     231             :      * @param nodeId
     232             :      */
     233             :     void tryConnect(const NodeId& nodeId);
     234             : 
     235             :     /**
     236             :      * Remove node from routing table
     237             :      * @param nodeId
     238             :      */
     239             :     void removeNodeInternal(const NodeId& nodeId);
     240             : 
     241             :     const NodeId id_;
     242             :     bool isMobile_ {false};
     243             :     std::mt19937_64 rd;
     244             :     mutable std::mutex mutex;
     245             :     RoutingTable routing_table;
     246             : 
     247             :     std::atomic_bool isShutdown_ {false};
     248             : 
     249             :     OnConnectionChanged onConnectionChanged_ {};
     250             : 
     251             :     ToConnectCb toConnectCb_;
     252             : };
     253             : 
     254             : } // namespace jami

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